Dear Luis,
I think the approach is correct, but I don't find the same value as you: I found it by a factor 1000 bigger, ie 2,8125*10^8 instead of 2,8125*10^5. It seems that somehow in the calculation you lose a 10^3 factor, while your values are correct (1 µA électron = 6,25*10^12 e- per second).
My opinion is not to show the mSv per year directly on the isodose map because it does not reflect the reality or somehow an indirect reality.
What I show is the µSv per hour normalized plot, while the linac beam is on. Then, I would check with the annual beam use (maybe with duration of presence of a human being in the premicies if needed) if it complies to the 1 mSv limitation in public area or not. But this is just the way I do things, of course you can map the mSv per year normalized plot if you want to.
Best regards.
Sebastien.
----- Mail original -----
De: "Luis Eduardo Gonzalez Amoros" <luisgona_at_alumni.uv.es>
À: "wurth" <wurth_at_ipno.in2p3.fr>
Cc: "Fluka Discuss" <fluka-discuss_at_fluka.org>
Envoyé: Samedi 29 Juin 2019 09:42:41
Objet: Re: [fluka-discuss]: Fwd: Fwd: Shielding doubts
Dear Sébastien and Fluka developers,
I keep working on this hint you gave me and I wanted to check if what I am doing is correct. In order to get the msV per year, if I have 1uA current, is the following normalization correct?
{{10^(-6)}A / {1,6e-19}C} x 3600 x 40 {hours/week} x 50 {weeks/year} x {1e-9 mSv/pSv} x U x T =281250 , U=0,25 and T = {1/40}
This numbers are not realistic, but first I need to undestand the process.
Best regards,
Luis
El Miércoles 19 Junio 2019 12:59 CEST, Sébastien Wurth <wurth_at_ipno.in2p3.fr> Ha escrito:
> Hello Luis,
>
> Just a little hint, you should try to obtain dose rate in µSv/h on your
> plot.
>
> In order to do this you have to know your beam intensity to convert
> primary in number of particules per unit time.
>
> Do it in the normalization box displayed in the plotting layout.
>
> Then you look at the duration of beam emission during the year and you
> check whether it complies with the 1 mSv limitation.
>
> Hope it helps.
>
> Regards.
>
> Sebastien.
>
> Le 19/06/19 à 08:07, Luis Eduardo Gonzalez Amoros a écrit :
> > Dear FLUKA experts,
> >
> > I write because I am simulating the shielding for a LINAC accelerator and I am having some doubts.
> >
> > I have created all the structure that I need for the moment, I have simulated 10000 primaries and 5 cycles and I have plotted the 2D EQ-DOSE USRBIN card. Thus, I guess I am getting the result in pSv/primary. However, I don't know how to get the equivalent dose for the whole year and check if outside the bunker it is bigger than 1msV.
> >
> > Could you explain me how to do this and/or suggest me where I can find some clear explanation?
> >
> > Attached I leave my code in case it helps to understand what I am trying to simulate.
> >
> > Regards,
> >
> > Luis
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
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Received on Sat Jun 29 2019 - 22:17:17 CEST